• 专利标题:   Graphene thermal conducting film useful for thermal conductivity of heating devices e.g. power tube, comprises e.g. zinc stearate, graphene oxide, zinc ricinoleate, molybdenum diboride, trimethylolpropane, bisphenol A diglycidyl ether.
  • 专利号:   CN111004500-A
  • 发明人:   YUAN F
  • 专利权人:   YUAN F
  • 国际专利分类:   C08J005/18, C08K013/06, C08K003/04, C08K003/38, C08K005/3492, C08K009/02, C08K009/04, C08L077/02, C09K005/14
  • 专利详细信息:   CN111004500-A 14 Apr 2020 C08L-077/02 202042 Pages: 6 Chinese
  • 申请详细信息:   CN111004500-A CN11386783 29 Dec 2019
  • 优先权号:   CN11386783

▎ 摘  要

NOVELTY - Graphene thermal conducting film comprises 0.3-1 pts. wt. zinc stearate, 30-40 pts. wt. graphene oxide, 1-2 pts. wt. zinc ricinoleate, 0.7-1 pts. wt. molybdenum diboride, 2-5 pts. wt. trimethylolpropane, 0.1-0.4 pts. wt. bisphenol A diglycidyl ether, 1-2 pts. wt. dicumyl peroxide, and 40-50 pts. wt. boron nitride dispersion. USE - The graphene thermal conducting film is useful for thermal conductivity of heating devices e.g. central processing unit (CPU), power tube, and module power supply. ADVANTAGE - The film has good thermal conductivity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing graphene thermal conducting film, comprising (i) adding dicumyl peroxide into 10-16 times absolute ethanol, and stirring well to obtain initiator solution, (ii) mixing graphene oxide and trimethylolpropane, adding into 5-7 times absolute ethanol, and stirring at 60-65 degrees C for 20-30 minutes to obtain graphene dispersion liquid, (iii) mixing zinc ricinoleate and dimolybdenum boride, adding into the boron nitride modified monomer solution, stir ring evenly, heating to 60-65 degrees C, stirring for 10-15 minutes, adding the graphene dispersion liquid, bisphenol A diglycidyl ether, stirring evenly to obtain composite monomer dispersion liquid, (iv) adding composite monomer dispersion liquid into the reaction kettle, passing nitrogen gas, adjusting the temperature of the reaction kettle to 65-70 degrees C, adding initiator solution, heat preserving, stirring for 3-5 hours, discharging, carrying out suction filtration, washing filter cake with water, drying under vacuum at 70-75 degrees C for 1-2 hours, and cooling to normal temperature to obtain modified polymer, and (v) mixing modified polymer with zinc stearate, evenly stirring, and casting into film to obtain graphene thermal conducting film.